{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "enabling technology", "process characterization", "machine or equipment", "application", "manufacturing standard"], "input": "The entered range 3D printers are predominantly based on Fused Deposition Modeling ( FDM ) technology , but more recently machines derived from stereolithography have entered the market due to expiring patents ."}
{"machanical property": [], "enabling technology": [], "process characterization": [], "machine or equipment": ["3D printers", "machines"], "application": [], "manufacturing standard": []}